Budiman, F. , Khan, Y. , Khan, A. , Beroual, A. , Malik, N. , Al-Arainy, A.. "Dependence of Particle Initiated PD Characteristics on Size and Position of Metallic Particle Adhering to the Spacer Surface in GIS". World Academy of Science, Engineering and Technology, Open Science Index 75, International Journal of Electrical and Computer Engineering, (2013), 7(3), 349 - 353.